Cylinder head grooves

[Jerryl]

Interesting read.

Somender-Singh combustion chamber grooves - detonation killer?? - Innovate Motorsports Forum

 

[Squid4life]

Hmmm... Very interesting. I am not sure I could bring myself to groove a fresh set of heads. It would be interesting to try on a mule motor though. You always find the good stuff Jerryl!

 

[GN280CI]

i would like to know the real aventage for the groove ??

 

[jsbuickpower]

i heard of this before i also read about a guy putting dimpules on the cc and the piston that gave the engine a better burn and theres also a companie that makes valves with dimpules on the valves

 

[charlief1]

Seems like a viable solution Jerryl. I haven't read all of it but I'm putting it in my favorites until I get the chance to.

 

[thadeal4real]

lol

 

[Audie1]

Soooo.......What exactly is this supposed to do for you?

 

[charlief1]

Decrease detonation issues Audie. More turbulance in the chamber which helps swirl and squish.

 

[Audie1]

Decrease detonation issues Audie. More turbulance in the chamber which helps swirl and squish.

Well that kinda makes sense to me.......Thanks :smile:

 

[turbogray]

wonder if anybodys tried it

 

[charlief1]

I'm seriously thinking about it but I haven't had time to do the research on it yet.

 

[pacecarta]

on a dished piston like we run in our buicks i see no advantage

on a flat top piston and a head like shown where there is maybe only a few thousndths clearance between head and piston on what could be half of the piston surface it makes a lot of sense ...like running fuse to the center of the bomb

 

[SPOOLN]

Grooves

I agree, that low compression motor would see no benefit. I would also think running a 17:1 ar would be way to lean and melt a hole in the piston.

 

[pajo]

opinion

I have to disagree - what is the compression ratio with 20lbs of boost .?I have a set of heads on the bench and I am going to definetaly try this trick on them .

 

[charlief1]

I have to disagree - what is the compression ratio with 20lbs of boost .?I have a set of heads on the bench and I am going to definetaly try this trick on them .

I've got to agree with you. Anything to add some turbulance in the combustion chamber to keep detonation down is worth a try. If you set everything up with custom pistons the edge of the piston will give great squish and quench and the grove will aid in it.

 

[Audie1]

I have to disagree - what is the compression ratio with 20lbs of boost .?I have a set of heads on the bench and I am going to definetaly try this trick on them .

That would be like 18.8 to 1 comp ratio. :wink:

 

[Chuck Leeper]

Yep..

on a dished piston like we run in our buicks i see no advantage

on a flat top piston and a head like shown where there is maybe only a few thousndths clearance between head and piston on what could be half of the piston surface it makes a lot of sense ...like running fuse to the center of the bomb

I agree. W/ a quench distance of .035-.045, etc, this may work as Paul has described....Dished, don't see it as a help.
I guess "time will tell", once it's tried.

 

[pajo]

time

Yep time will tell .These people have been doing it for a while :Turbobricks Forums - Powered by vBulletin but their site crashed and most of the info it's gone and popular science had it a while a go :http://www.popsci.com/cars/article/2004-09/obsession-mr-singhs-search-holy-grail.....I do believe that we will get some benefit from it since we are talking about creating a swirl-turbulence for a better or complete combustion .

 

[charlief1]

Thanks, that tellme me what I need to know. Now I can see how it should be placed to work right.